Driving attachment for vacuum cleaning apparatus



I W. H. KENYO N AND J. L. SHORROCK.

DRIVING ATTACHMENT FOR VACUUM CLEANING APPARATUS. APPLICATION FILED IuIY 6.1 915.

Patented Dec. 14, 1920.

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UNITED STATES PATENT OFFICE.

WILLIAM HENRY KENYON AND JAMES LIGI-ITFOOT S-HORROCK, 0F ACCRINGTON. ENGLAND, ASSIGNORS T0 ENTWISLE AND KENYON LIMITED, OF ACCRINGTON. ENGLAND, A CORPORATION OF GREAT BRITAIN.

' DRIVING- .ATTACHMENT FOR VACUUM CLEANING APPARATUS.

Specification of Letters Patent.

Patented Dec. 14. E525).

Application filed July 6, 1915. Seria1 No. 38,284.

To all "whom it may concern Be it known that we, WILLIAM HENRY KnNYoN and J .mrns Lioirrroor SHoRnooK, both British subjects, residing both at Accrington, county of Lancaster, England, have invented certain new and useful Improvements in. Driving attachments for Vacuum Cleaning Apparatus. of which the following is a specification.

This invention relates to hand vacuum cleaners for carpets'and other articles of furniture or for floors or walls, in which suction apparatus or bellows are contained in a casing mounted on wheels from which motion is imparted to the bellows and to which a hand motion can be applied to actuate the bellows when the apparatus is at rest.

The apparatus is made as heretofore with bellows in a casing, a suction chamber and dust receptacle, a nozzle or a flexible pipe attachment, and driving wheels mounted on a crank shaft by which the bellows are moved to and fro.

The object of this invention is to provide a high speed hand drive for such apparatus as a self contained speed unit which is made detachable so as to permit the bellows to be reciprocated at an increased speed for each revolution of the handle and which will only be operative when the driving wheels are removed from the floor.

The invention will be described with reference to the accompanying drawings which show various ways in which it may be carried out.

Figure 1. is an end elevation with part of the casing in section of one form of the invention.

Fig. 2. is a side elevation of same.

Fig. 3. is a detail view of the detachable self contained speed unit.

Fig. 4. is a detail view of a modified form of detachable self contained speed unit.

Fig. 5. is a detail view of a further modification of detachable self-contained speed unit.

Fig. 6. is an end elevation partly in section of another form of the invention.

Fig. 7. is a side view of this modification.

Fig. 8. is a side elevation of a further form of the invention.

In the drawings the vacuum cleaner is shown in the normal position for working by movement on the floor. but when the high speed gear is applied the apparatus is removed from the floor and turned'over so that it rests on the casing B.

The apparatus is made as heretofore with bellows A in a casing B. a suction chamber (not shown) a nozzle or a flexible pipe attacl-nnent (not shown) and driving wheels C mounted on a crank shaft D by which the bellows A are moved to and fro.

In the form of the invention shown in Figs. 1, 2 and 3 the self contained speed unit is carried in a bracket or casing E adapted to be attachably and detachably clamped or secured by the wing nuts 6 to the lower framing B of the machine.

The bracket E carries a pin or shaft f provided at one end with a finger or lever F adapted to engage an extension at of the crank shaft D; The pin or shaft f carries at the outer end a toothed wheel 7" which engages an internal toothed wheel F of larger diameter and the actuating handle H is affixed to the internal toothed wheel F.

In the form of the invention shown in Fig. 4 the gear wheel f carried on the shaft or pin f is a bevel or miter wheel which engages and is driven by a similar wheel F 2 of larger diameter carried on a shaft 7 extended above the top of the cleaner and to which the actuating handle H is affixed. Or the bevel gear may be arranged as shown in Fig. 5 in which a third wheel F is employed to enable the handle H to be arranged at right angles to the cleaner.

In the form of the invention shown in Figs. 6 and 7 the crank shaft D is prolonged or extended beyond the lower framing B in a suitable frame or bearing bracket 7) which is provided with a stud 7 adjacent to the crank shaft end. A pinion f is affixed to the end of the crank shaft and an internally toothed wheel F of larger diameter is mounted on the stud 7. The stud f is provided with a circular groove 5: near its outer end and the driving handle is pivoted on the wheel F but its lateral movement is limited by the stops h. A hole 71 is formed in the handle H adapted to engage the circular groove f so that when the wheel F is in place and the handle H moved laterally it will hold the wheel in position.

In the form of the invention shown in Fig. 8 the pinion f carried on the extended crank shaft 1) gears externally With a toothed Wheel F of larger diameter carried on a stud f the actuating handle H being scribed above the crank shaft D7 will be actuated at a higher speed than the speed of rotation of the actuating handle H, the ratio of the speed depending upon the ratio of the actuating gear.

WVha'tWe claim as our invention and desire-to protect by Letters Patent is 1. A self-contained, speed accelerating operating unit attachment for vacuum cleaners comprising a bracket, clamping, means for detachably securing said bracket to the body of the cleaner to be operated, a shaft journaled in said bracket,'an arm carried by said shaft. and adapted 'to engageqan operating crank of said cleaner when said bracket is secured to the body thereof," a secondshaft carried, by. said" bracket, a

manually operated crank on saidsecond shaft, and speed accelerating gearing connecting' said second shaft With said first named shaft.

2. The combination with operated mechanism including a crank shaft, of speed accelerating operating mechanism therefor comprising a bracket provided with means for detachably securing the same to said operated mechanism, a shaft journaled in said bracket, an arm carried by said last named shaft and adapted, to engage a crank on, said crankshaft, a second shaft carried by said bracket, a manually, operated crank on said second shaft, and speed accelerating gearingoperatively connecting saidftwo last named shafts. V

Intestimony whereof Wefhave hereunto set our hands in presence of a subscribing witness,'this 18th day of June, 1915.

WILLIAM jHENRY K'ENYON. c JAMES LIGHTFOOT'SHORROCK. Witness J. OWDEN OBRIEN. 

